We arrive back from the cruise terminal in the morning and our flight back east does not happen until late evening. Are their luggage lockers in the airport?

No

Your cruise ship should provide transportation of your bags directly to Sea-Tac. We just got back from a Royal Caribbean cruise on Friday and had a late day flight out. Our bags were delivered to the airport and stored at no extra charge.

I didnt see any

Nope

Didn't see any

As much I fly never seem them but was told they plan to upgrade in 2 years because they keep getting requests for lookers I am one of them